Final registration

Iam doing my bcom final year and had passed IPCC in may 2012.

I have 1 more year to complet my bcom ,so iam planning to do ariticleship after that .

I heard we must regester for finals in 45 days from result ,but when i asked in my local icai they said nothing like that ..I am in confusion wheater to regester for finals now or can i regester after a year .?..

Please help.